Yeah, I doubt that's going to work as noc.wikimedia.org can only access the production mediawiki files. If we had a noc.wikimedia.beta.wmflabs.org it would only be able to show interwiki-labs.cdb rather than interwiki.cdb.

We did run updateinterwikicache, and now there is an interwiki map (rather than nothing, and coming from interwiki-labs.cdb), but it has links to production sites, which I believe would be part of T75906.